A marketing research company desires to know the mean consumption of meat per week among people over age 30. They believe that the meat consumption has a mean of 3.5 pounds, and want to construct a 95% confidence interval with a maximum error of 0.06 pounds. Assuming a standard deviation of 1.4 pounds, what is the minimum number of people over age 30 they must include in their sample

12*c

step-by-step explanation:

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: